First Day Of Summer 2025. Summer solstice 2025 (beginning of astronomical summer) on the day of the summer (june) solstice, the solar disk, moving along the ecliptic, will fall into its northernmost point and will be. What exactly is the summer.
Usually, when we talk about the first day of summer, we are referring to the astronomical summer which is defined by the earth’s axis and orbit around. Fall begins with the autumnal equinox, monday, september 22, 2025, 2:19 p.m.